Nutrientsng/ml
Ferritin
Optimal
30–150 ng/ml (women 30–100)
Why
Iron stores; low means fatigue and poor training response, high (>300) means oxidative stress and possible haemochromatosis — both directions matter.
How often
Yearly; certainly for menstruating women and vegetarians.
What moves it
Low: iron-rich food with vitamin C; high: blood donation (and genetic testing).
Last reviewed: 6 September 2026
This site is educational and does not replace medical advice. Start any supplement or drug only after consulting a doctor or pharmacist.